rewrite precedence rules for more clarify

Author: amarao

docs/docsite/rst/playbook_guide/playbooks_variables.rst

@@ -199,7 +199,7 @@ You can use the `set_fact` module to combine lists into a new `merged_list` vari
       - peach
       - plum
       - pear
-    
+
     tasks:
     - name: Combine list1 and list2 into a merged_list var
       ansible.builtin.set_fact:
@@ -425,16 +425,16 @@ Ansible does apply variable precedence, and you might have a use for it. Here is
 
   #. command line values (for example, ``-u my_user``, these are not variables)
   #. role defaults (as defined in :ref:`Role directory structure <role_directory_structure>`) [1]_
-  #. inventory file or script group vars [2]_
-  #. inventory group_vars/all [3]_
-  #. playbook group_vars/all [3]_
-  #. inventory group_vars/* [3]_
-  #. playbook group_vars/* [3]_
-  #. inventory file or script host vars [2]_
-  #. inventory host_vars/* [3]_
-  #. playbook host_vars/* [3]_
+  #. any group vars (all and not all) defined inside of an inventory file or script [2]_
+  #. inventory group_vars/all (a file in the directory group_vars/ adjacent to the inventory) [3]_
+  #. playbook group_vars/all (a file in the directory group_vars/ adjacent to the playbook) [3]_
+  #. inventory group_vars/* (a file in the directory group_vars/ adjacent to the inventory) [3]_
+  #. playbook group_vars/* (a file in the directory group_vars/ adjacent to the playbook) [3]_
+  #. host vars defined in an inventory file or script [2]_
+  #. inventory host_vars/* (a file in the directory host_vars/ adjacent to the inventory) [3]_
+  #. playbook host_vars/* (a file in the directory host_vars/ adjacent to the inventory) [3]_
   #. host facts / cached set_facts [4]_
-  #. play vars
+  #. play vars (defined in the section vars for the play)
   #. play vars_prompt
   #. play vars_files
   #. role vars (as defined in :ref:`Role directory structure <role_directory_structure>`)